Date   
Re: Changing the IBM Power supply fan for the Digikey fan

Sid Boyce
 

Thanks David,
I'll do that. Thinking about it later, as long as those 2 wires are not connected to +12V, only one way the fan will work.
73 ... Sid.

On 09/10/2019 16:46, David Fainitski wrote:
Hello,  Sid
Only one way will work properly,  so try.Â
You have only two different ways.Â

On Wed, Oct 9, 2019, 6:16 AM Sid Boyce <boyce.sid@... <mailto:boyce.sid@...>> wrote:

Hi David,

The pinout for the existing power supply fan differs from what I
see online.

pin 1 -- Black -- GND

pin 2 -- White -- ?

pin 3 -- Blue -- ?

pin 4 -- Red   -- +12V

Which of the 2 wires are Sensor and Control.

The Digikey fans recommended have Red -- +12V, Black -- GND,
Yellow --
Sensor and Brown -- Control.

How to connect the new fan to the old fan's plug?

73 ... Sid.




David
--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks

Re: Changing the IBM Power supply fan for the Digikey fan

David Fainitski
 

Hello,  Sid
Only one way will work properly,  so try. 
You have only two different ways. 

On Wed, Oct 9, 2019, 6:16 AM Sid Boyce <boyce.sid@...> wrote:
Hi David,

The pinout for the existing power supply fan differs from what I see online.

pin 1 -- Black -- GND

pin 2 -- White -- ?

pin 3 -- Blue -- ?

pin 4 -- Red   -- +12V

Which of the 2 wires are Sensor and Control.

The Digikey fans recommended have Red -- +12V, Black -- GND, Yellow --
Sensor and Brown -- Control.

How to connect the new fan to the old fan's plug?

73 ... Sid.




David

Changing the IBM Power supply fan for the Digikey fan

Sid Boyce
 

Hi David,

The pinout for the existing power supply fan differs from what I see online.

pin 1 -- Black -- GND

pin 2 -- White -- ?

pin 3 -- Blue -- ?

pin 4 -- Red   -- +12V

Which of the 2 wires are Sensor and Control.

The Digikey fans recommended have Red -- +12V, Black -- GND, Yellow --
Sensor and Brown -- Control.

How to connect the new fan to the old fan's plug?

73 ... Sid.




David

External IO drive capability?

Steven Wilson
 

David,

Do you happen to know the drive capability of the FPGA IOs that are connected to the external SPI bus? 

Thanks,

Steve KA6S

Re: building Ody2

David Fainitski
 

Hello,  Mark
1.2V bus shorting is a simple thing in the assembly process.  You don't need the schematic to find shortened blocking capacitor on the bottom or shortened FPGA balls.  Also checking the FPGA key is aligned properly to board's key. 

Re: building Ody2

Marc olanie
 

Thanks a lot, David

In fact, that was not exactly the question. I was wondering which "branch" of the spi bus you chose, as the Alex protocol needs 2 Enable lines to be fully functional, and not only one. With only one, I'll have to butcher the cabling of my Alex frontend to fit the ody reassignment. 

This is not important anymore. I stoped working on this project, as the fpga 1.2V rail has a short to ground, and Sprint Layout is hardly able to give me the full equipotential. Without schematic, it would be quite impossible to find such a bug, and I don't imagine spending more money, buying a new board and a new fpga. 

Anyhow, a big thanks you to you, David. For your efforts, for your involvment in this project, and for your ideas. 
Wish you a nice week-end
Marc


Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Marc olanie
 

" I know it wasn't Beethoven, Brahms, the Beatles or Dave Brubeck"
... you only take four, so what ? (silly private bad joke)

Btw, still waiting for my 122 MHz VCO. My MCU firmware has been successfully flashed yesterday with MPLAB XPE (since the right version of pickit 3 programmer is rather hard to be found and those I found didn't had a "low voltage programming" option)

I think an Odyssey version of the Raspberry Pi python code developped by Steve to load the gateware of the Hermes Lite V2 would be a very smart initiative. Just to avoid dealing with bad Blaster clones that nuke the kernel. Without mentionning the fact that a small raspi app is always better than an incredibly heavy Quartus install.

I just understood the way the bootloader was running and how were switched the different gatewares during the bootstrap. It's definitely a great idea, far superior than the OpenHPSDR way to flash the gateware. Kudos to David

I'll try to load all that stuff with a USB Blaster (a good one) today. I hope the fpga only need/check the 10 MHz clock to be programmed.
Marc f6itu

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Sid Boyce
 

Then again I find the music in many presentations a nuisance and an irritation as it adds zero to the topic.
I wonder who ever started the practice, I know it wasn't Beethoven, Brahms, the Beatles or Dave Brubeck.
73 ... Sid.

On 21/09/2019 12:01, Marc olanie wrote:

Hi Kurt

David’s last video is not censored anymore by youtube -these guys are paranoïd-… but if you still can’t see it, leave the wonderful country of nordic legends and come and visit Europe :- )

…in other words, install a Tor navigator. Your country of origin will be masked and changed, even for the eyes of your local service provider (and to the Youtube’s eyes also)

Tor is a software router with several proxies randomly located around the world.

https://www.torproject.org/download/

it’s default web browser is Firefox

Have a nice movie session :- o

73’

Marc f6itu

*De :* ody-sdr@groups.io <ody-sdr@groups.io> *De la part de* Kurt Poulsen via Groups.Io
*Envoyé :* samedi 21 septembre 2019 12:37
*À :* ody-sdr@groups.io
*Objet :* Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Hi David

Sorry for a late response but my internet sucks for an extended periode of time due to land line problems (molds eating the isolation)

I noticed and still prompting “Distorted due to copyright”, but It does not matter and might even be an intended feature 😊

Kind regards

Kurt

*Fra:*ody-sdr@groups.io <mailto:ody-sdr@groups.io> <ody-sdr@groups.io <mailto:ody-sdr@groups.io>> *PÃ¥ vegne af *David Fainitski
*Sendt:* 16. september 2019 18:09
*Til:* ody-sdr@groups.io <mailto:ody-sdr@groups.io>
*Emne:* Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

[Edited Message Follows]

Hello,  Kurt
I have received accidentally some music under copyright protect.
Try this

https://youtu.be/1wKZJvoZehk

--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Kurt Poulsen
 

Hi Marc
Thank you for the comments, I can see it but for a small section this angled white test is shown with no audio.
I have never seen it before, but as we latterly got a social democratic government Youtube may be in nag nag mode
😊

I have in June visited HAMRADIO 2019 and I came home with a lot of European spirit which must last until next year.

Kind regards

Kurt     

 

Fra: ody-sdr@groups.io <ody-sdr@groups.io> På vegne af Marc olanie
Sendt: 21. september 2019 13:01
Til: ody-sdr@groups.io
Emne: Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

Hi Kurt

David’s last video is not censored anymore by youtube -these guys are paranoïd-… but if you still can’t see it, leave the wonderful country of nordic legends and come and visit Europe :- )

 

…in other words, install a Tor navigator. Your country of origin will be masked and changed, even for the eyes of your local service provider (and to the Youtube’s eyes also)

Tor is a software router with several proxies randomly located around the world.

https://www.torproject.org/download/

it’s default web browser is Firefox

 

Have a nice movie session :- o

73’

Marc f6itu

 

De : ody-sdr@groups.io <ody-sdr@groups.io> De la part de Kurt Poulsen via Groups.Io
Envoyé : samedi 21 septembre 2019 12:37
À : ody-sdr@groups.io
Objet : Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

Hi David

Sorry for a late response but my internet sucks for an extended periode of time due to land line problems (molds eating the isolation)

I noticed and still prompting “Distorted due to copyright”, but It does not matter and might even be an intended feature 😊

Kind regards

Kurt

 

Fra: ody-sdr@groups.io <ody-sdr@groups.io> På vegne af David Fainitski
Sendt: 16. september 2019 18:09
Til: ody-sdr@groups.io
Emne: Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

[Edited Message Follows]

Hello,  Kurt
I have received accidentally some music under copyright protect. 
Try this 

https://youtu.be/1wKZJvoZehk

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Marc olanie
 

Hi Kurt

David’s last video is not censored anymore by youtube -these guys are paranoïd-… but if you still can’t see it, leave the wonderful country of nordic legends and come and visit Europe :- )

 

…in other words, install a Tor navigator. Your country of origin will be masked and changed, even for the eyes of your local service provider (and to the Youtube’s eyes also)

Tor is a software router with several proxies randomly located around the world.

https://www.torproject.org/download/

it’s default web browser is Firefox

 

Have a nice movie session :- o

73’

Marc f6itu

 

De : ody-sdr@groups.io <ody-sdr@groups.io> De la part de Kurt Poulsen via Groups.Io
Envoyé : samedi 21 septembre 2019 12:37
À : ody-sdr@groups.io
Objet : Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

Hi David

Sorry for a late response but my internet sucks for an extended periode of time due to land line problems (molds eating the isolation)

I noticed and still prompting “Distorted due to copyright”, but It does not matter and might even be an intended feature 😊

Kind regards

Kurt

 

Fra: ody-sdr@groups.io <ody-sdr@groups.io> På vegne af David Fainitski
Sendt: 16. september 2019 18:09
Til: ody-sdr@groups.io
Emne: Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

[Edited Message Follows]

Hello,  Kurt
I have received accidentally some music under copyright protect. 
Try this 

https://youtu.be/1wKZJvoZehk

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Kurt Poulsen
 

Hi David

Sorry for a late response but my internet sucks for an extended periode of time due to land line problems (molds eating the isolation)

I noticed and still prompting “Distorted due to copyright”, but It does not matter and might even be an intended feature 😊

Kind regards

Kurt

 

Fra: ody-sdr@groups.io <ody-sdr@groups.io> På vegne af David Fainitski
Sendt: 16. september 2019 18:09
Til: ody-sdr@groups.io
Emne: Re: [ody-sdr] SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

 

[Edited Message Follows]

Hello,  Kurt
I have received accidentally some music under copyright protect. 
Try this 

https://youtu.be/1wKZJvoZehk

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Marc olanie
 
Edited

hi Steven
Any manufacturer will do the same. As long as the soldermask is wrong, all via are "tented" by default. This is specifically mentionned by all pcb manufacturers (and it's a necessity if you don't want shorts between vias and pads during a reflow process). It is strictly impossible to have some tenting if the gerber file shows a well defined solderpaste mask. 

To avoid this kind of trouble, a "no soldermask" zone and a solderpaste mask should be defined -and designed- for each IC if handsoldering is considered (and probably a large 1.5mm to 2 mm "super via"  for the gnd pad soldering when possible) 

in this case, you can circumvent the problem with a fiberglass pencil and scratch the tenting and the surrounding area of the lower side.  You can also (not recommanded) use a hot air reworking gun and solder your QFN after some pre-tinning the pads on the component side. That's what I call a "a phone repairer tip". Not elegant at all but it works (not always) 
73'
Marc f6itu
ps : using fiberglass pencils is a rather dangerous process. One should wear gloves, protective googles and a mask to avoid breathing small glass particles. The working area should be carefully cleaned after each operation. 

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Steven Wilson
 

Who manufacturered the boards?


On Fri, Sep 20, 2019, 2:42 PM David Fainitski <rolin791@...> wrote:

Hi All
Unfortunuately, I have received today spoiled PCB with insulated grounding vias for grounding pads of ICs.

Check your boards curefully

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

David Fainitski
 

Hi All
Unfortunuately, I have received today spoiled PCB with insulated grounding vias for grounding pads of ICs.

Check your boards curefully

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Andrew
 

Hi David,
I was just wondering, but agreed, 14 bits is a good choice for a low cost SDR. If you don't have strong local signals 12 bits is even better value at £23.78.
16 bit high speed converters seem to have a real premium, the now old, LTC2205 (65MSPS) is £62 here in the UK compared to the 14 bit ADS6142 at £30.
At the end of the day the difference in performance between a good 14 bit and a good 16 bit converter is small for most people.
Comparing typical datasheets...at 65MSPS:
LTC2205 (16 bit) SNR=78.9dB at 15MHz, SFDR=100dB at 15MHz, ENOB=12.8 bits at 15MHz, NF=~24dB (£62)
ADS6142 (14 bit) SNR=74.7dB at 10MHz, SFDR=95dB at 10MHz, ENOB=12.1 bits at 10MHz, NF=~27dB (£30)
ADS6122 (12 bit) SNR=71.7dB at 10MHz, SFDR=95dB at 10MHz, ENOB=11.6 bits at 10MHz, NF=~30dB (£23.78)
The price you pay is slightly worse noise figure and SFDR, 14 bits is a good sweet spot!
Looking forward to the new release.
Regards,
Andrew

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

David Fainitski
 

Hello, Andrew

LTC2165 now has a price like all the Micron SDR together with 14-bit ADC  :)

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Andrew
 

Hi David,
Thanks for the explanations, I look forward to seeing the new design.
Nice to have options for different ADCs, did you consider a 16 bit converter as an option I wonder?
Thanks,
Andrew

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

Leo Goto
 

I compared ody2 and SDR Micro (case only).
This size is smaller and cute than I expected. I like it very much.

Leo,

Re: building Ody2

David Fainitski
 

- On the "Ext. I/O" connector, SPI outputs, which "enable"  output has been chosen in the gateware ? TX or RX ? 
In other words, which part of the Alex protocol has been kept intact ? LPF and the 3 TX output, or HPF and the Xvtr/RX2/RX3/Bypass & external attenuator ?

If you want to use SPI control, here is the schematic of decoder

http://ody-sdr.com/wp-content/uploads/2017/09/SPI_decoder.jpg
Description of outputs here ( from SPI.v, firmware sources):

*****************************************

Modified by David Fainitski

for Odyssey-2 TRX project

2017

Bit       Function           I.C. Output

------ ------------             -----------

Bit 00 - 160 Meters LPF U1 - D0

Bit 01 - 80 Meters  LPF U1 - D1

Bit 02 - 60/40 Meters LPF U1 - D2

Bit 03 - 30/20 Meters LPF U1 - D3

Bit 04 - 17/15 Meters LPF  U1 - D4

Bit 05 - 12/10 Meters         U1 - D5

Bit 06 - 1.5 MHz HPF        U1 - D6

Bit 07 - 6.5 MHz HPF U1 - D7

Bit 08 - 9.5 MHz HPF    U2 - D0

Bit 09 - 13 MHz HPF         U2 - D1

Bit 10 - 20 MHz HPF        U2 - D2

Bit 11 - Bypass                U2 - D3

Bit 12 - 6M Preamp          U2 - D4

Bit 13 - ANT #2                  U2 - D5

Bit 14 - ANT #3                 U2 - D6

 

Bit 15 - Tx/Rx Relay           U2 - D7

This will work like Alex board control with the same cons. and pros.

Other way, you can use 7 User Outputs + ANT control pin and use filters which you want with no restrictions. Just install demultiplexer and have up to 127 control lines



On this screenshot, only 3 User Outputs and 7 control lines after demultiplexer enough for me for control my own LPF HPF

See the schematic https://easyeda.com/rolin791/HFPU-100

 

Re: SDR Micron - 14-bit Direct Digital Conversion Receiver with USB connection

David Fainitski
 

Hello, Andrew
Yes, I did one mistake on board design and decided also to make some changes. I don't want to show boards before I check them.

Next week I have plan to show you the final boards design and 2 more optional design with other ADC - AD9649 and LTC2255.

I will show also renewed firmware, BOM list and DigiKey CART.

Sorry for this fals-start. Leo Goto - please send me private message with your shipping address, I will ship to you new boards for free. This is my fault.